AJA KONA 4 Installation & Operation Manual page 36

Input/Output Icons
Framebuffer
Primary Format
Secondary Format
Format Screen
Conversion
KONA v12.4
Blue Video is same format as the Primary Format (framebuffer)
Green Indicates that KONA is performing an active change to the video making it different from
the Primary Format (e.g., down-conversion).
Yellow Reference video (black burst or other reference source)
Red The selected operation cannot be performed
The input and output icons are triangles that together with their color show all the input
and outputs and their status (selected, not selected, input present or not, format, etc.). A
complete video path is shown when inputs and outputs are connected with lines going
to/from the framebuffer.
Figure 3. Input/Output Icons
The framebuffer is the "engine" where your third-party applications interface with the
AJA device. The framebuffer has a format (called the "Primary Format") and color space
that it follows, as defined in the linked menu screens or via external application software.
The "Secondary Format" is a selection for format conversion.
The Primary Format is the media format written to disk and used in your project. This is
the format that the framebuffer will use and is shown in the Control Panel using the color
blue. It is the format that the third-party application software will either receive from the
AJA hardware, or is sending to the hardware. All icons in blue are the same as the Primary
Format used by the framebuffer. Also any text descriptions in the block diagram that
appear in blue indicate that something is in the primary format. For example:
• If the input and output icons are blue, you know that the same format is used
throughout the video path. No format conversion is being performed.
• If the input or output icon colors differ (blue input and green output icons for example),
you know that a format conversion is being performed.
Any format other than the currently selected Primary Format, is a secondary format. As
described previously, this means that either the Inputs or Outputs are somehow different
from the framebuffer's assigned format—the Primary Format. A conversion is readily
apparent because of the color change from blue.
NOTE: In some cases the application you use with the KONA will automatically set the Primary
Format, overriding the user's selected primary format in the AJA Control Panel.
Format function screen conversion allows selection of a format conversion between
High-definition and Standard-definition. The choices offered depend on the AJA device
present in your system and the Primary and Secondary format selected.
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